a written permission, he had to write another letter to the president of th
题型：不详难度：来源：
a written permission, he had to write another letter to the president of the university.| A．Not giving | B．Not having been given | | C．Having not given | D．Having not been given |
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答案
| B |
解析
试题分析：考查非谓语动词作状语。句意：因为没有给他一个书面的批准，他不得不另外写了一封信给大学校长。根据非谓语动词的否定，not应该置于非谓语之前，排除C和D，然后根据句意，give与he之间的关系为被动，确定答案为B. |
举一反三
Many things _____ impossible in the past are quite common today.| A．having being considered | B．considered | | C．are considered | D．considering |
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The tall building ____________ in the center of this area will be used as a 5-star hotel. | A．to built | B．building | | C．being built | D．having built |
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——Can the project be finished as planned?
—— Sure, _________ it completed in time, we’ll work two more hours a day.| A．having got | B．to get | C．getting | D．get |
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He ran all the way to the station only _______________ the train had already left.| A．find | B．to find | C．finding | D．to have found |
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This problem is said _______ three times, but he still can’t understand it.| A．to have been explaining | B．to have explained | | C．having been explained | D．to have been explained |
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